Your frame is all SL if it is the one we talked about. We can micromanage the subtleties all we want, but as I stated a few posts ago, a builder of superlative product only uses superlative materials. You have absolutely nothing whatsoever to worry about with respect to the quality of the tubing in your bike. We all enjoy the debate, the history. But understand that it is all good. There are some folks who are convinced of this, or convinced of that, based on what a rider rides, or what a builder uses, without actually knowing the truth that lies behind it all. You are not going to wear your bike out. Anyway bikes are like cars, the more of them you own, the fewer miles that accumulate on any one of them, so if you are worried about it, buy a few more. I like my cars just like my bikes, full campy. Dave Tesch